0
little bitty
0
little girl
0
minute
0
negligible
0
nugatory
0
puerile
0
scatterbrained
0
silly
0
slight
0
small
0
small letter
0
trifling
0
trivial
0
unimportant
0
yeasty
<12>
13 years ago|212 views|share |citing 
APASmart Define. (2013). unfrivolous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unfrivolous/thesaurus/antonyms
ChicagoSmart Define. 2013. "unfrivolous thesaurus" https://smartdefine.org/unfrivolous/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2013, unfrivolous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unfrivolous/thesaurus/antonyms>.
MLASmart Define. "unfrivolous thesaurus" 28 June 2013. Web. 30 September 2026. <https://smartdefine.org/unfrivolous/thesaurus/antonyms>